Adjustable spring-motor fan.



I ieg. i. i

TXIASZ 1&1. ZAMULEVVICZ, OF CHICAGO, ILLINI'S.

Mnsrnnrin slimme-Moron FAN.

Specificationef Iyietters fat-ent.

Patented Mm'. 14, 191e Application filed Junelg, 1915. Serial 'NoA 36,997.

To all whom it may concern.'

Be it known that i, Toiusz M. ZAnULn. wioz, a subject of the'. Czar of Russia, residing et Chicago', in the county of Cool( and State of Illinois, have invented certain new and useful `improvernents in Adjustable Spring-Motor Fans, of Awhich the fol` lowing is a. specifica-tion..

This invention relates to certain new end useful improvements in adjustable spring motor fans. y

The primary object of the invention is the provision of an air circulating fan adinstable in its position and having e. spring motor for eetuatingythe seme.

A further obgect o? the device is to provide :i spring motor operz'ited rotary fun that is easy to manufacture and inexpensive 1to maintain, the saine being readily adjustable to different levels of operation.

A still further object is to provide :L support for .xnaiiitnii'iing e spring motor opere ely l`geared with n vertically edjustable revolving fen.

Vit-lith these general objeets in view and' fit-hers that'will appear the nature of the invention is better understood", the saine eonsiste in the novel construction, combination and arrangement of parts hereinafter more fully described,' illustrated in 'the eccompenying drawings and pointe-deut in the appended claims.

In the drawings forming a p'zirt of this applioetion land in which like ,designating characters refer to corresponding parte throughout the several views1-l `igure l is .fi `s e front elevation thereof with the fan shown in vertice-l section and the guard thereof removed. D 3 is vertical longitudinal seetionel. of the device looking in the direction' el the fen. Figs. 1land 5 enlarged horizontal detziil views teken noon lines V lV sind xl-'V speeiivo` l of Eig. f5, and Fig. 6 is a vertical senti v'ievv taken upon line VdVl of It will he first not'l that the invention broadly consists of mounting. support l() for e.v spring motor l1 and e vertically ed jnstebie .fan 12 operatively connected to the The seid mountingJ support 10 i rectaugularfranie13 positioned V)n e bese 14 While the forward side a side elevational view of the device. Fig. Y

15 of the seid frame is provided with e longitudinallyerrenged dove-teil slot 16. 'l'he winding. shaft 17 of the spring or motor 11 jour .filed transversely through the opposite sides of the freine 13 in the lower portion thereof und Ain a plane below the front. side slot 1G. Anopereting knob or key 18 is ceri-led by the rearwardly-profleeting end. of themotor shaft'lrizlnd by shaft 213* end the driven sneft 26, which let- .he top of theA ter is journuled' adjacent trame 13 while connecting belts 2T connect the pairs ol pulleys` :2l arid-25. The said 4driven,shaft 2G is journaled inn bushing 28 at the rear side of the freine 13 and in e web carried by the front Wall 15, which web spans the slot 1G adjacent its inner face. `A mounting)r block 30 is slidttloly mounted ivithin the front slot 1G of the frame having :i dove-tailed connection therewith as best illustrated in Fig. 5 of the drain/"ings, set screws 3l being carried by the seid block for engaging the frame side 15 to retain the said block at' the desired elevated edjustment. A stub or fen shaft 32 is hori- V zontelly journnled in the said block 3l) and .side l5 adjacent the lower end of the Slot ll; and has en idler sprocket Wheel 38 secured thereon. A sprocket chain 39 runs over the seid sprocket ivheel 38 and a similer sprocl/r'et wheel 'l0 secured to the aforementioned driven shaft 26 sind *he said chain is in operative rnesh with taie opposite sides of the sprocket wheel of the fan shaft 32. The top crosspiece il of the frame 13 being removable, the block 30 is slidably inserted within the liront slot 16 prior to the positioning` of the said crosspiece and also prior to the journaling of the driven shaft through the front wall web 29. l l

l/V ith the device set up for use as herein illustrated, it will be seen that the spring 1l may be placed under tension by turning the knob 18 and when desired for use, the dog 19 is pivotally moved out of engagement with the Wheel 26 whereupon the force of the spring motor in its unwinding operation turns the gear 2l and the shaft while the driven shaft 26 is revolved with increased rapidity by means the train of pulleys 24, operatively connecting the said shafts. The sprocket wheel e() turns during revolution of the drivensnal't 2G whereby the sprocket wheel 33 is operated for revolving the shaft l2, it being apparent that the said fan will continue its revolutions until the motor ll has run down and the power thereotx has become exhausted.

The fan l2 may be vertically adjusted as desired by releasing the set screws 31 and forcibly moving the block longitudinally of the slot i6, whereupon the set screws 8l may be again tightened, thus positioning the ian at the desired elevation. It will be seen that this vertical adjustment of the block 30 will be impossible while the sprocket wheel 33 is in operative mesh with the chain 39 unless the chain is shifted during such movement of the block, and this will allow the sprocket wheel 33 to revolve during such Vertical adjustment. IThe parallel engaging; portions of the sprocket chain 39 may however, be sufficiently sprung apart to disengage the same from the sprocket wheel thus allowing a rec vertical movement of the sprocket Wheel 33 and its adjustable mounting block.

A radially movable serviceable Ventilating fan is thus arranged which is inexpensive to operate by reason of the spring motor einployed and the same is rendered especially advantageous as the plane of the air draft is readily regulated without shifting the entire device.

lVhile the form of the invention herein shown and described is what is believed to be preferable embodiment thereof, it is nevertheless tobe understood that various forms, modifications and arrangements of the parts may be made withoutdeparting from the spirit and scope of the invention as set forth in the appended claims.

What I claim as nevir is l. A device of the class describede comprising a rectangular upright frame having a dove-tailed slot in the front side thereof, a block having slidablc dove-tail connection with the said slot, positioning means carried by the said block., a fan -shaft journaled through the said block, a sprocket Wheel andv fan secured to the said shaft, aspring 'motor within the said frame and operative connections between the said motor and sprocket wheel. y

2. A device of the class described, com prising rectangular upright frame having a dove-tailed slot in the front side thereof, a bloei; havingl slidable dove-tail connection with the said slot, positioning means carried by the said block, a fan shaft journaled through vthe said block, a sprocket Wheel and :fan secured to the said shaft, a driven shaft jonrnaled in said frame above the said fan shaft,.a sprocket Wheel upon the outer end of the said driven shaft in alineinent with the said fan shaft wheel, an idler sprocket jonrn'aled to the said frame beneath the said sprocket wheels, and a sprocket chain operatively carried by the said driven and idler sprockets and operatively meshing with the said fan shaft sprocket at the opposite sides thereof.

A device of the cla-Ss described, comprising a rectangular upright frame having a dove-tailed slot in the front side thereof, a block having slidable dove-tail connection with the said slot, positioning means carried by the said block` a fan Ishaft journaled through the said block, a sprocket wheel and fan secured to the said shaft, a driven shaft journaled in said frame above the said fan shaft, a sprocket wheel upon the outer end of the Said driven shaft in alinernent with the Said fan shaft wheel, an idler sprocket journalcd to the said frame beneath the said sprocket wheels, a sprocket chain operatively carried by the said driven and idler sprockets and operativel rneshin with the said fan shaft 

